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The MCQ: In notation for query graphs, single circles are used to represent; "Query Graphs Notations" App Download (Free) with answers: Relation nodes; Query nodes; Truth nodes; Local nodes; for online computer science programs. Practice Query Graphs Notations Quiz Questions, download Amazon eBook (Free Sample) for best online schools for computer science.

## Query Graphs Notations MCQs: Questions and Answers

MCQ 1:

In the notation for query graphs, the double ovals or circles are used to represent

1. non-declarative nodes
2. constant nodes
3. stable nodes
4. declarative nodes
MCQ 2:

In the notation for query graphs, the single circles are used to represent

1. relation nodes
2. query nodes
3. truth nodes
4. local nodes
MCQ 3:

The representation of relational calculus internal queries is classified as

1. structural graph
2. nodes graph
3. query graph
4. functional graph
MCQ 4:

The nodes which represents queries in the relations are classified as

1. relation nodes
2. query nodes
3. truth nodes
4. local nodes